Senior Information Security Architect/vCISO with 12+ years designing and implementing robust cybersecurity programmes for Fortune 500 enterprises. Specialising in AI/ML security, cloud architecture (AWS & Azure), and identity — aligned to PCI-DSS, HIPAA, NIST, and CIS frameworks.
Threat modelling for AI systems, adversarial robustness testing, model supply chain security, and governance frameworks for responsible AI deployment.
AWS and Azure architecture security reviews, IAM hardening, zero-trust implementation, cloud-native SIEM integration, and multi-account governance at scale.
Strategic and tactical threat intelligence programmes, adversary profiling, MITRE ATT&CK and ATLAS mapping, and intelligence-led security operations for proactive defence.
Designing enterprise security blueprints using TOGAF and SABSA — from network segmentation to secure SDLC integration and DevSecOps pipelines.
Aligning security programmes with NIST CSF, ISO 27001, PCI-DSS, HIPAA, and emerging AI regulation. Board-level risk reporting and audit-ready documentation.
Rapid containment, forensic investigation, and post-incident hardening. Building and rehearsing IR playbooks that cut mean time to recovery.
Designing and auditing secure network architectures — from firewall policy reviews and micro-segmentation to intrusion detection, VPN hardening, and SD-WAN security.
Securing the SDLC — threat modelling, SAST/DAST integration, API security, secure code review, and AppSec programme maturity assessments.
Endpoint protection strategy covering EDR/XDR deployment, device hardening, patch management, mobile security, and policy enforcement across diverse device fleets.
End-to-end identity security — SailPoint, CyberArk, privileged access management, customer identity, cloud entitlement governance, and zero-trust identity architectures.
Hiring a Senior Security Architect or vCISO is a significant investment. Here's exactly what that investment delivers — measurable outcomes, reduced risk, and a security programme that actively enables your business rather than slowing it down.
I translate technical vulnerabilities into business risk language your board and executives understand — then build the controls to close those gaps. No security theatre, no box-ticking: every control traces to a real threat.
Whether you're migrating to AWS, Azure, or running a hybrid environment, I design security architecture that scales with your infrastructure — not against it. From landing zones to DevSecOps pipelines, security is built in from day one.
I help organisations govern their AI and ML workloads responsibly — implementing security controls, federated identity frameworks, and policy structures aligned to emerging regulations before they become mandatory requirements.
Most breaches start with compromised identity. I design and deploy IAM and PAM programmes — using tools like SailPoint and CyberArk — that enforce least privilege, eliminate standing access, and protect your most sensitive systems.
I've led organisations through HIPAA, HITRUST, SOC 2, and cloud compliance programmes. I build compliance into the architecture so that audits become straightforward evidence-gathering — not a fire drill.
Security doesn't have to be a blocker. I've architected platforms — including a $10M/quarter API security programme — where robust security was itself a commercial differentiator, unlocking enterprise customers and regulated markets.
Whether you are a fast-moving startup securing your first cloud workload, an SMB modernizing wireless networks for Point of Sale, or an enterprise navigating complex global regulations, I provide tailored security leadership that scales with your growth.
End-to-end security assessments of your AI/ML technology stack in AWS and Azure, utilizing frameworks like OWASP LLM Top 10 and MITRE ATLAS to ensure your innovation remains resilient.
Preparing your organisation to meet the demands of a rapidly shifting regulatory landscape, ensuring your AI initiatives are responsible and defensible.
Deep-dive architectural security reviews for AWS and Azure environments to ensure a "secure by design" posture — from identity and data protection to infrastructure hardening and real-time monitoring.
Design and mature your threat intelligence capabilities to move from reactive to proactive defense — integrating IaaS/SaaS/on-prem environments with SIEM and SOC workflows for automated event correlation and alerting.
Executive-level security leadership for enterprises and SMBs — without the overhead of a full-time hire. Covering board reporting, multi-year roadmaps, compliance leadership, Zero Trust architecture, Secure SDLC, and security awareness programmes.
Comprehensive security risk assessments and compliance readiness programmes for organisations entering or operating in regulated markets. From gap analysis through to audit preparation, I ensure your controls are evidenced, documented, and defensible.
Integrating security into every stage of your software development lifecycle — shifting left so vulnerabilities are caught at the source, not in production. From CI/CD pipeline hardening to SAST, DAST, and SCA tooling, I build security into your engineering culture.
End-to-end design and implementation of Identity and Access Management and Privileged Access Management programmes — enforcing least privilege, eliminating standing access, and reducing your blast radius from credential-based attacks at enterprise scale.
In-depth technical guides and enterprise architecture references covering identity, cloud security, and modern access management frameworks.
A comprehensive enterprise architecture guide covering how to reduce Conditional Access policy sprawl by 70-80% using attribute-based dynamic policies. Covers design patterns, implementation approaches, governance, and compliance frameworks.
Read Article →A practical reference guide for migrating legacy applications to the cloud, covering the 6R migration strategies, workload assessment criteria, RASCI roles, and Entra ID integration patterns for each migration approach.
Read Article →A comprehensive framework for securing AI agent workloads using Conditional Access and Zero Trust principles — covering identity, semantic, execution, and governance layers across AWS and Azure environments. Includes implementation patterns, cross-cloud comparisons, and an interactive decision tree.
Read Article →Architecture, implementation, and deployment reference for enterprise Angular SPAs accessing AWS ML services. Covers multi-layer security with CloudFront, WAF, Cognito/Entra ID federation, Regional API Gateway, and Lambda-based JWT authorisation for SageMaker and Bedrock workloads.
Read Guide →A comprehensive production ML systems guide covering the full MLOps lifecycle — from reproducibility, data pipeline engineering, and experiment tracking to Kubernetes deployment, CI/CD automation, monitoring, and LLMOps. Includes security-first patterns: supply chain hardening, secrets management, model endpoint protection, and compliance frameworks (GDPR, EU AI Act, NIST AI RMF).
Read Blueprint →A comprehensive work procedure for deploying AgentSkills AI security agents to assess cloud-hosted AI models across AWS and Azure. Covers layered architecture, process workflows, Bedrock vs SageMaker split-track flows, coverage domains, and implementation checklists.
Read Article →I'm Stephen A. Adebowale — a Senior Information Security Architect and vCISO with over 12 years of experience designing and implementing robust cybersecurity programmes for Fortune 500 enterprises across financial services, healthcare, and technology sectors.
My work spans AWS and Azure cloud security, AI/ML security governance, identity and access management (IAM/PAM), DevSecOps, and enterprise risk and compliance. I've led cross-functional teams delivering secure, scalable platforms — including a $10M/quarter revenue-generating API security platform — and spearheaded AI governance frameworks aligned to emerging regulatory requirements.
I hold a B.Eng. (Hons) in Electronic and Information Engineering from the University of London. Outside of work, I volunteer at the L.A. Food Bank and coach youth football.
A selection of high-impact work from over 12 years securing enterprise environments across financial services, healthcare, and technology.
Spearheaded the security architecture for an API platform integrating Akamai, Axway, Azure Entra ID, and AWS — delivering a secure solution generating $10M per quarter in revenue.
Led the design and deployment of AI security controls and federated identities (Azure Workload Identities for AWS SageMaker/Bedrock) to enforce least privilege and reduce the AI/ML threat surface.
Drove the development, implementation, and growth of an enterprise AI Governance programme — covering AI frameworks and policies, risk management, compliance, and ethical considerations.
Architected and implemented an enterprise data protection strategy using CTEM, DSPM, and CASB technologies across on-prem and cloud environments.
Drove the implementation of SailPoint Identity Services and CyberArk PAM, enhancing enterprise identity governance and privileged access management at scale.
Architected and deployed a cloud SASE solution for over 2,000 end users using Palo Alto GlobalProtect, fully supporting company-wide Business as Usual (BAU) initiatives.
Led the rollout of AWS ControlTower for multi-account management and integrated SAST, DAST, and SCA tools into a comprehensive CI/CD pipeline using Azure DevOps and Scalr.
Led the effort to achieve HIPAA/HITRUST compliance for PHI data hosting, implementing enterprise network security controls and IAM using ADFS/SAML/SSO frameworks.
Whether you're looking for an AI security assessment, a cloud security review, or strategic advisory support — I'd love to hear about your challenges.
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